Originally Posted by
mahasamatman
Yes. Unless you pay for a more expensive ticket (Latitude or maybe Comfort fare), AC charges everyone (even their own Super Elites) for seat assignments in Coach.
If you book Flex or higher, seat assignment is free for everyone.
SEs do not have to pay for seat assignments, even on Basic Economy tickets.
I'd be curious to know the fare basis for the return.
I had a suspicion, but the published UA fares I see look like "KNA5A2EL", which I would have assumed AC would infer as Business Lowest.